EP3707694A1 - Système de simulation d'acte chirurgical - Google Patents
Système de simulation d'acte chirurgicalInfo
- Publication number
- EP3707694A1 EP3707694A1 EP18827156.3A EP18827156A EP3707694A1 EP 3707694 A1 EP3707694 A1 EP 3707694A1 EP 18827156 A EP18827156 A EP 18827156A EP 3707694 A1 EP3707694 A1 EP 3707694A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- interface
- surgical tool
- surgical
- sleeve
- opening
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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- 238000012549 training Methods 0.000 claims abstract description 25
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- 239000000463 material Substances 0.000 description 40
- 238000004088 simulation Methods 0.000 description 17
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- 238000002324 minimally invasive surgery Methods 0.000 description 3
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- 230000002452 interceptive effect Effects 0.000 description 2
- 238000012978 minimally invasive surgical procedure Methods 0.000 description 2
- 230000007170 pathology Effects 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 210000001519 tissue Anatomy 0.000 description 2
- 239000011345 viscous material Substances 0.000 description 2
- 238000010146 3D printing Methods 0.000 description 1
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- 238000012977 invasive surgical procedure Methods 0.000 description 1
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Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/28—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for medicine
- G09B23/285—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for medicine for injections, endoscopy, bronchoscopy, sigmoidscopy, insertion of contraceptive devices or enemas
Definitions
- the present invention relates to a surgical procedure simulation system for the training and training of surgeons.
- a trainee surgeon manipulates a joystick to interact with a virtual environment to simulate a surgical procedure.
- a virtual environment to simulate a surgical procedure.
- hand position sensor systems to control and guide the surgical simulation.
- a first disadvantage is that the learner does not find the same sensory conditions as during an operation.
- EP0935796 discloses a system for training persons for performing minimally invasive surgical procedures.
- This device comprises a housing having openings for insertion of a tool. Once inserted, the instrument can move in axial translation and in rotation.
- This instrument is connected to a guidance system and sensors inside the housing.
- the device also includes a screen on which is broadcast a video representing the body of a patient animated by a respiratory cycle and a heart rhythm. The screen superimposes on this video the position in the virtual world of the surgeon's instrument.
- Document US2017 / 251900 also discloses a driving device comprising a surface and a housing for housing a sheath. This document discloses a camera system for reproducing the interior of the device on a screen.
- a first disadvantage is that the feelings of the learner are not comparable to those felt by the surgeon in operation. In particular, the freedom of movement of the instruments and the interactions of these instruments with the patient's body or other medical devices are not representative of a real situation.
- a second disadvantage is that this type of device is suitable only for training in performing a specific surgical procedure. This drawback essentially results from the fact that, when several openings are envisaged in a surface of a housing belonging to such a device, these openings are arranged according to predetermined positions corresponding to intervention zones specifically. related to the pathology concerned. Therefore, to train medical personnel to intervene in another pathology, the housing must be replaced, which involves additional manipulations, often complex, and expensive.
- the present invention relates to a training device for performing a surgical procedure overcoming the disadvantages of the prior art.
- the invention therefore relates to a training device for performing a surgical act.
- the invention also relates to a system for guiding a surgical act.
- the invention relates to a training device for performing a surgical procedure, characterized in that it comprises an enclosure comprising at least: a first surface defining an operation interface intended to receive at least one surgical tool, the rest of the surface of the enclosure forming a base; an opening arranged on said first surface; and a bonding interface maintained at the circumference of said opening; said link interface being adapted to receive and hold a sheath.
- the present invention advantageously makes it possible to reproduce surgical procedures, in particular micro-invasive surgical procedures, optimally imitating the sensations perceived during a real surgical act and by making it possible to simulate a plurality of surgical procedures.
- the driving device may further comprise one or more of the following characteristics, taken separately or in any possible technical combination.
- the first surface comprises a movable portion relative to the base, said opening being arranged on said movable portion.
- Such a configuration of said first surface makes it possible to modify the placement of the opening positioned on the moving part. It is therefore a particularly advantageous configuration since it allows to reproduce in an optimized manner the position of the incisions intended to be performed in connection with the surgical procedure concerned. Thus, it is possible to train on a plurality of surgical procedures with the same device, while optimally reproducing real conditions.
- the structure of the drive device with movable portion also adapts to the morphology of each patient.
- the first surface has another aperture arranged on another portion of the first surface, distinct from said movable portion.
- Such a configuration of the first surface is advantageous because it increases the number of sleeves, and ultimately the number of surgical tools that can be introduced into the enclosure.
- said other portion is integral with the base.
- said other portion is also movable relative to the base.
- each opening is placed on a moving part, the movable parts being distinct from each other.
- the device comprises at least one slide configured to cooperate with at least one movable portion, so as to allow a translational movement of said at least one movable portion.
- said bonding interface comprises an elastomer, a foam, a silicone gel or a plastics material.
- the binding interface comprises at least one element whose Young's modulus is between 0.002 MPa and 50 MPa.
- the enclosure comprises at least one guide interface arranged near at least one opening, said guide interface providing a ball joint connection with a longitudinal portion of a sleeve.
- the link interface is the guide interface. In one embodiment, the link interface is removable.
- the driving device further comprises a system for fixing said device to a support; and means for adjusting the position of said device of the fastening system.
- the device is thus advantageously configured to be adaptable to several users and to be installed on different media.
- the invention relates to a guidance system for driving a surgical act characterized in that it comprises: a driving device according to the present invention, a first sheath having a longitudinal and hollow portion introduced and held in one of the openings of said device and adapted to receive a surgical tool, said first sleeve providing a pivot-sliding connection for the displacement of said tool.
- said guiding system further comprises a second sheath having a longitudinal and hollow portion introduced and maintained in a second opening of said device and adapted to receive a surgical tool, said second sleeve providing a pivot-sliding connection for the movement of said tool.
- the at least one sheath comprises a layer of elastic material disposed on the inner surface of the longitudinal portion of said sheath.
- said guidance system further comprises a surgical tool including a joystick; a rod intended to be introduced into one of the openings or in a connection interface of the driving device, a control interface; at least one orientation sensor and at least one positioning sensor of the surgical tool; and at least one communication interface for transmitting data collected by said sensors to a remote computer.
- said guidance system further comprises a sensor for activating the control interface or a sensor of a functional portion of said surgical tool generating a control indicator, said sensor being arranged on the control surface.
- surgical tool a generator of an image of an area of a patient's body on a display, said generator comprising a calculator for determining on the one hand the value of the control indicator and on the other hand orientations and image positions to be displayed on a display according to data received from the sensors arranged on the joystick; and a video display displaying a reproduction of a portion of at least one surgical tool and a movement relative to its activation when the control indicator is generated and displaying the area of a body of a patient.
- the guidance system thus allows the user to see a simulation of the part of a human body to operate in the virtual world as well as a representation of the movement and activation of the surgical tools it handles.
- Figure 1A is a view of the driver forming a closed enclosure.
- Figure 1B is a view of the drive device forming an open enclosure.
- Figure 2A is a sectional view of an opening.
- Figure 2B is a sectional view of an opening and a removable link interface.
- Figure 2C is a sectional view of an opening and a removable link interface comprising a rigid inner wall.
- Figure 3A is a sectional view of an opening in which is inserted a sheath.
- Figure 3B is a sectional view of an opening and a removable link interface in which is inserted a sheath.
- Figure 4 is a sectional view of an opening and a sleeve in which is inserted a rod of a surgical tool.
- Figure 5 is a sectional view of a driving device. A sleeve is inserted into an opening of the device and the stem of a surgical tool is inserted into said sleeve.
- Figure 6 is a sectional view of a sleeve comprising a layer of elastic material.
- Figure 7 is a sectional view of a driving device comprising two openings, a sleeve being inserted into each of the openings.
- Figure 8 and Figure 9 is a sectional view of a device comprising means for adjusting the distance between two openings.
- Figure 10 is a view of the first surface of a driving device comprising a plurality of openings.
- Figure 11 shows an example of an image generated by the guidance system.
- the invention relates to a drive device and to a guidance system comprising the drive device.
- the device is intended to receive surgical tools to simulate a surgical procedure.
- this surgical device and / or the surgical tools are connected to a processor for generating an interactive virtual reality, also called "virtual world".
- this interactive virtual reality simulates a portion of a patient's body as well as the position of the surgical tools in said body portion.
- the present invention aims to reproduce at the training device the sensations felt by the surgeon in real situations, in particular the exteroceptive sensations.
- the drive device 1 comprises an enclosure 2.
- the enclosure 2 defines a closed volume.
- the enclosure 2 comprises at least a first surface 9, the remainder of the surface of the enclosure 2 forming a base 21.
- This first surface 9 defines an operation interface.
- this first surface 9 comprises at least one or at least two openings 4. This operation interface is thus intended to receive at least one surgical tool by at least one of its openings 4.
- the first surface 9 is a flat surface.
- the base 21, for its part, is shaped so that the enclosure 2 has a total surface in the form of a rectangular parallelepiped.
- these openings 4 make it possible to simulate an incision of the patient in the virtual world.
- the driving device 1 comprises sensors for recording the positions, movements and / or states of the controls of a surgical tool inserted into an opening 4.
- said opening 4 is adapted to receive and maintain a sheath 7.
- the sheath 7 simulates the presence of a trocar inserted into an incision in the skin of a patient.
- said opening 4 comprises a link interface 6 or is configured to receive a link interface 6 adapted to receive a sleeve 7.
- the shape of the enclosure 2 or the shape of the first surface 9 corresponds to the shape of the abdomen of a patient. As illustrated in FIG. 1B, the enclosure 2 can be formed by only the first surface 9.
- the first surface 9 comprises at least one portion having a curve.
- the curvatures of the first surface 9 are predefined to correspond to the curvatures of the abdomen of a patient.
- the opening 4 is a free space between the walls of the enclosure 2.
- the device 1 comprises a connection interface 6 maintained at the circumference of said at least one opening 4.
- the connecting interface 6 has a hollow center for insertion of a sheath.
- this connection interface 6 comprises at least one flexible material.
- this flexible material is representative of the stiffness or elasticity of the biological tissues of the patient of the insertion zone of a sheath into the hollow center of the connection interface 6.
- the connecting interface 6 is removable and can be removed from the opening 4.
- the opening 4 is cylindrical in shape.
- the opening 4 and the connection interface 6 comprise a flat part (not shown) to facilitate insertion and / or positioning of the connection interface 6 in the opening 4.
- the advantage of the flat is to stabilize the connection interface 6 in the opening 4, in particular when said opening 4 is located on a curved portion of the first surface 9 or on a portion of the first surface having an inclination with the horizontal.
- the stabilization of the connection interface 6 in the opening 4 allows both not to interfere with the feeling of the user.
- the stabilization of the connection interface 6 also allows a more precise parallelism between the exact position of the opening 4 and the position of this opening 4 in a virtual representation.
- connection interface 6 comprises a rigid outer wall 61.
- this rigid outer wall 61 envelops the flexible material 62.
- the rigid outer wall 61 allows the insertion of the connecting interface 6 in the opening 4 of the first surface 9.
- the connecting interface 6 also comprises a rigid inner wall 63.
- the flexible material 62 is arranged between a rigid outer wall 61 and a rigid inner wall 63. In one embodiment, these two walls (61, 63) define a hollow cylinder.
- This rigid inner wall 63 is to facilitate the insertion of the sleeve 7 into the connection interface 6.
- This advantage is increased when the diameter of the portion to be inserted from the sheath 7 is greater than the internal diameter (D) of the connecting interface 6 the rigid inner wall 63 when the flexible material is at rest.
- the rigid inner wall 63 makes it possible to protect the flexible material 62 or to prevent tearing of the flexible material 62 during insertion of the sheath 7.
- the rigid inner wall 63 covers a portion of the circumference of the inner diameter of the flexible material 62 so as to allow the enlargement of the inner diameter (D) of the connecting interface 6 by compression of the flexible material 62 .
- the height (H) of the connecting interface 6 corresponds substantially to the height of an abdominal wall. In one embodiment, the height of the connecting interface 6 is between 1 cm and 15 cm.
- a link interface 6 comprising a high height, for example between 10 cm and 15 cm, allows for example to simulate an operation on people with a high obesity.
- the hollow center is cylindrical and has a diameter at rest (D) slightly smaller than the external diameter of the part of the sleeve to be inserted into the connection interface 6.
- diameter at rest is meant the diameter when the flexible material is in its natural form or does not undergo any stress.
- the flexible material 62 comprises an elastomer, a silicone gel, a foam or a plastics material.
- said link interface 6 comprises at least one part having a Young's modulus of between 0.002 and 50 MPa.
- the elastic properties of the flexible material are similar to the elastic properties of the skin.
- said link interface 6 comprises at least one part having a Young's modulus of between 0.002 and 15 MPa.
- Such an interval thus makes it possible to create a feeling, for medical personnel wishing to be trained, identical to that obtained during actual surgical procedures performed at the level of the skin. This makes it possible to target the desired feeling very precisely, which contributes to training the medical staff in an optimal way for the surgical procedure concerned. In other words, aiming at such an interval makes it possible to avoid confusing the sensations associated with that of a surgical practice on the skin with other sensations, such as those related to a surgical practice practiced in deeper layers of the body, typically veins, nerves, ligaments, etc.
- this binding interface 6 is to reproduce the patient's trocar / incision interactions. In this way, during the manipulation of the instruments, the user perceives sensory feedbacks close to those felt during a real situation in surgery, in particular in minimally invasive surgery.
- the elastic properties of the flexible material 62 of the bonding interface 6 are isotropic.
- the flexible material has an isotropy of at least greater than 90%.
- this isotropic flexible material 62 makes it possible to reproduce the elastic properties of the skin.
- the elastic properties of the flexible material 62 of the bonding interface 6 are anisotropic.
- the flexible material 62 of the bonding interface 6 may comprise fibers oriented in the same direction creating a material in which the Young's modulus is greater in the parallel direction than in the direction perpendicular to the fibers.
- the fibers may constitute the bonding interface 6 or be included in a matrix forming a composite material.
- this flexible anisotropic material 62 makes it possible to reproduce a fibrous layer of the skin.
- the device according to the present invention is able to simulate an incision on any part of the human body.
- the at least one opening 4 is designed to receive and maintain a link interface 6. Once held, the link interface 6 is designed to receive and hold a sheath 7.
- the enclosure 2 also comprises at least one guiding interface.
- the guide interface is arranged near at least one of the openings 4.
- this guiding interface provides a ball joint connection between the enclosure 2 and a surgical tool inserted in said opening of the enclosure 4. In a embodiment, the guiding interface provides a ball joint connection between the enclosure 2 and a sheath 7 inserted into said opening 4.
- the link interface 6 is also the guide interface.
- the interaction between the binding interface 6 and the sheath 7 makes it possible to optimally reproduce the interaction between a trocar and an incision made on the patient during a surgical act.
- this connection between the binding interface 6 and the sheath 7 represents the connection between the biological tissues of the insertion zone of the trocar and the trocar.
- the connecting interface 6 has a substantially cylindrical annular shape held firmly with the edge of the opening 4.
- Such a geometrical configuration of the connection interface 6 promotes the realization of the ball joint connection between the enclosure 2 and a surgical tool / sheath 7 inserted therein.
- the choice of a particular form of the connection interface 6 is only one variant of the invention. Thus, nothing prevents, on the one hand, having other shapes, and on the other hand, that certain degrees of freedom in rotation are limited in their respective amplitudes, as is described for example in more detail here. afterwards in relation to the embodiments illustrated in FIGS. 2B and FIG. 2C.
- the guiding interface provides a connection between the enclosure 2 and the longitudinal portion of a sleeve 7 or a surgical tool 8.
- said connection comprises two degrees of freedom in rotation.
- a degree of rotational connection is defined along the longitudinal axis of the longitudinal portion 71 of the sheath 7.
- the longitudinal portion 71 of the sheath 7 comprises an outer surface having on at least one of its portions a surface condition adapted to limit sliding with the connecting interface 6.
- the portion longitudinal 71 of the sheath 7 comprises an outer surface 73 comprising a predefined surface state to limit sliding with the connecting interface 6. In one embodiment, this surface state is adapted to block the sliding rotation on its longitudinal axis the sleeve in the opening 4.
- this guide interface allows the sheath 7, once inserted into the opening 4, to have 3 degrees of freedom in rotation.
- the sheath 7 may also retain at least one degree of freedom in translation corresponding to an insertion and withdrawal movement.
- the flared portion 72 of the sleeve makes it possible to block the translation of the sleeve when it is depressed by a predefined distance. The flared portion therefore limits in one direction this degree of freedom in translation.
- the flared portion also facilitates the introduction of the surgical tool into the sheath 7.
- At least two degrees of freedom in rotation are angularly limited.
- the degrees of freedom in rotation along the axes orthogonal to the central insertion axis A are angularly limited. Indeed, the inclination of the sheath 7 relative to the first surface 9 is limited angularly so as to reproduce the freedom of the trocar inserted into an incision.
- the ball joint of the sleeve in the guide interface is limited to a rotation of 90 °, 45 ° or preferably 30 °.
- the flexible material 62 of the connection interface allows a limited rotation of a sleeve 7 along the two axes orthogonal to the insertion center axis A of the connection interface 6.
- the flexible material 62 is capable of compressing to allow rotation of the sheath.
- the angular limit of the degrees of freedom in rotation is thus dictated by the compressibility limit of the flexible material 62.
- the rotation of the sleeve 7 is limited by the thickness (E) of the flexible material 62 and / or by the elasticity of said flexible material 62 of the connection interface 6.
- the The thickness (E) of the flexible material 62 varies between 0.5 and 15 cm. The thickness guarantees the degrees of freedom.
- the thickness (E) of the flexible material 62, its elasticity, and the height (H) of the bonding interface 6 are determined to reproduce the mechanical strength of the skin or the abdominal wall.
- the advantage of a removable link interface is therefore to be able, on the same opening, to modify the connection interface and therefore the height and the mechanical properties of the first surface connection 9 / sleeve 7.
- the same device 1 makes it possible to multiply the variations of use: it allows not only to vary the parts of the body or the types of wall incised but also can take into account the variability of the individuals.
- connection interface 6 is to make the connection between the enclosure 2 and a sheath 7.
- the sheath 7 simulates the presence of a trocar. In one embodiment, the sheath 7 is in the form of a hollow cylindrical rod. In one embodiment, the sleeve 7 comprises a first longitudinal portion 71 configured to be inserted into the opening 4. In one embodiment, the first longitudinal portion 71 comprises a hollow cylinder. In one embodiment, the first longitudinal portion 71 includes an outer diameter and an inner diameter. In one embodiment, the first longitudinal portion 71 is intended to receive at least one surgical tool.
- the sheath 7 comprises a second flared portion 72 whose inside diameter is greater than the inside diameter of the first longitudinal portion 71.
- the sheath is advantageously configured to be inserted into the opening 4 by its longitudinal portion. 71 so that the flared portion 72 is located outside the chamber 2.
- this flared portion 72 is configured to introduce the longitudinal portion of a surgical tool.
- the sheath 7 comprises means for adjusting the diameter (not shown) of its longitudinal portion 71. This means for adjusting the diameter of the longitudinal portion 71 of the sheath 7 makes it possible to vary this diameter as a function of the surgical tool or depending on the diameter of the rod of the surgical tool used for training.
- the sheath 7 is a trocar or a reproduction of a trocar such as those used during surgical operations.
- the first surface 9 comprises a set of openings 4 comprising at least two openings 4.
- the first surface 9 comprises a plurality of openings, for example 3, 4, 5, 6, 7, 8 , 9 or at least 10 openings 4.
- the openings 4 are located on the first surface 9 so as to correspond to the location of the incisions made in micro-invasive surgery of the abdomen, for example in visceral surgery. or bariatric. Depending on the type of operation and the simulated surgical technique, part of these openings 4 may be used.
- the device comprises a predefined number of plugs in order to plug the openings 4 which would not be used during the training.
- the device 1 allows the training of different types of surgical procedures by the position and orientation of the openings.
- the device 1 comprises means for adjusting the diameter or the size of at least one opening 4. These means for adjusting the diameter or the size of the openings make it possible to vary the size or the diameter of the openings. openings.
- the device 1 may comprise a diaphragm or iris whose center corresponds to the center of the opening.
- said diaphragm or said iris may be connected to activation means configured to cause reduction or enlargement of the diameter of the opening 4.
- the diameter or size of the opening 4 is variable and the opening 4 can thus be intended for a wide variety of sleeve diameter 7 and / or a wide variety of bonding interfaces 6.
- the advantage is to be able, with the same device 1, to train on different types of operation actually requiring trocars of different sizes.
- the device 1 comprises at least two openings 4 of different dimensions. This arrangement makes it possible to simulate different surgical operations on the same device 1. Indeed, according to the simulated surgical procedure, the incisions can be of different lengths. For example, the incisions made via the abdominal wall will have dimensions larger than the same incision made for a vascular operation. The invention makes it possible to provide realistic support for the user to practice to perform an act.
- the device 1 comprises a plurality of openings 4 among which at least two openings 4 comprise different connection interfaces 6.
- different bonding interface is meant bonding interfaces 6 whose height, elasticity of the flexible material and / or the thickness of the flexible material differ from each other.
- the device 1 comprises several openings 4 each capable of reproducing incisions in different parts of the body, for example an incision in the skin or an incision in the abdominal wall. The device 1 is thus compatible for the simulation of various surgical operations.
- the device 1 further comprises a fixing system 3 of said device 1 to a support.
- the fastening system may comprise clamping means.
- the fastening system 3 comprises a U-shaped tab to cooperate with an edge of a table.
- the fastening system 3 comprises a fastening system by vice.
- the fastening system 3 is a suction cup.
- the device 1 also comprises means for adjusting the position 5 of the fastening system 3 with respect to said device 1.
- the fastening system 3 may comprise a longitudinal member 31.
- the device 1 comprises a position adjusting means 5 configured to slide along the longitudinal member 31.
- the position adjusting means 5 comprises a removable element 51 intended to be inserted into bores of the longitudinal element 31 of the fastening system 3 so as to fix the position of the chamber 2 with respect to the fastening system 3.
- the position adjustment means 5 comprises a portion integral with the enclosure 2 allowing a translation of the enclosure along the longitudinal member 31 is a removable element.
- the device 1 also comprises means for adjusting the inclination of the chamber 2.
- the position adjustment means 5 is the means for adjusting the inclination of the chamber 2.
- the orientation adjustment means allows the inclination of the chamber 2 to be adjusted at the level of the connection with the longitudinal element 31.
- the position adjustment means 5 makes it possible to move the enclosure 2 so that the openings can correspond to an ergonomic position for the user.
- the user will adjust the position of the chamber 2 so that the opening 4 is substantially on the same vertical level as the hands of the user when his arms are lowered or in a non-fatiguing position.
- the position setting means 5 is configured to be adapted for several users.
- the setting of the position 5 allows the mobility of the device which can be so used on any medium.
- the enclosure 2 comprises a position and orientation tracking system.
- the enclosure 2 comprises a detector making it possible to identify the presence of a connection interface 6 in an opening 4. The detector also makes it possible to identify the parameters of the connection interface 6, for example , its height, the elasticity of the flexible material 62 or the thickness of the flexible material 62.
- the chamber 2 defines a closed volume
- the chamber 2 is filled with air.
- the chamber 2 is filled with a material, preferably a soft or viscous material, or a liquid. The presence of a viscous material or a liquid makes it possible to simulate resistance to the movement of the at least one rod 81 of a surgical tool 8 moving in the chamber 2.
- the viscosity of the material or liquid in the chamber 2 is greater than 4-10 "3 Pa.s. In one embodiment, the modulus of elasticity of the material in the chamber 2 is greater than 0.002 MPa. viscoelasticities can simulate a movement of the surgical tool 8 in the body, for example in a volume closing blood, in a muscle or an organ.
- the sleeve 7 is intended to receive the rod 81 of a surgical tool 8.
- the sleeve 7, the longitudinal and hollow portion 71 is held in one of the openings 4 to receive a surgical tool 8.
- a “surgical tool” is meant here any surgical tool comprising a longitudinal portion 81 (also called “rod” later) configured to be inserted into the body of a patient and a handle 82 to be manipulated by the surgeon during the operation.
- the term “surgical tool” also refers to any reproduction of such a tool, such as, for example, a tool reproduced by 3D printing.
- a "surgical tool” also includes an imaging system for recording images of the interior of the patient's body during a surgical procedure such as an endoscopic camera or an arthroscopic camera.
- the sleeve 7 and the rod 81 of the surgical tool 8 form a pivot-sliding connection.
- the connection formed by the rod 81 and the sleeve 7 as well as the connection formed by the sleeve 7 and the interface of guidance combine to form, between the rod 81 and the enclosure 2, a link comprising 3 degrees of freedom in rotation and a degree of freedom in translation.
- the rod 81 on the three degrees of freedom in rotation of the rod 81, that along the central axis of insertion A or along the longitudinal axis of the rod 81 is completely free. In one embodiment, 1 or 2 degrees of freedom in rotation are angularly limited so as to reproduce the freedom of movement of a surgical tool during an operation. In one embodiment, the angularly limited degrees of freedom of rotation are the rotational degrees of freedom along the axes orthogonal to the central insertion axis A. In one embodiment, the internal diameter of the longitudinal portion 71 of the sheath 7 is slightly greater than or equal to the outer diameter of the rod 81 of the surgical tool 8.
- the enclosure 2 comprises at least 2 openings 4 arranged on the first surface 9.
- the at least two openings 4 each comprise a connection interface 6.
- the at least two openings 4 are adapted to each receive a sheath 7.
- the first surface 9 comprises a movable portion 10 relative to the base 21, the opening 4 being arranged on said movable portion 10.
- Such a configuration of said first surface 9 makes it possible to modify the placement of the opening 4 positioned on the mobile part 10 with respect to the base 21. In this way, it is possible to reproduce in an optimized manner the position of incisions intended to be practiced in link with the surgical act concerned. Thus, it is possible to train on a plurality of surgical procedures with the same device 1, while reproducing in an optimized manner the actual conditions by means of the link interface 6. It is also possible to adapt the device 1 to the morphology of each patient.
- a movable portion 10 of the first surface 9 corresponds to a surface element able to be moved, by a user or automated means known per se, between a first position, said starting position, and a second position, called arrival position. It will be implicitly apparent to those skilled in the art, having regard to the nature of the invention, that these respective start and end positions correspond to stable positions, i.e. which the movable portion 10 is maintained.
- the device 1 is provided with locking means in stable position of the movable portion 10.
- any locking means known to those skilled in the art can be implemented (brake, stop, etc.). ), the choice of a locking means constituting only an alternative embodiment of the invention.
- Fig.8 and Fig.9 schematically illustrate preferred embodiments of the enclosure 2, wherein two openings are made in the first surface 9, the latter being configured so that the gap between said two openings is adjustable depending on the surgical procedure on which a member of the medical staff wishes to practice.
- the first surface 9 has another opening 4 arranged on another portion of the first surface 9, distinct from said movable portion 10. Said openings 4 are adapted to receive and maintain a sheath 7 as described above.
- Such a configuration of said first surface 9 makes it possible to modify the placement of the two openings 4, one with respect to the other, and thus to vary the gap that separates them. It is thus possible to reproduce in an optimized manner the position of a plurality of incisions intended to be performed in connection with the surgical procedure concerned. In this way, medical personnel who wish to be trained are able to practice a plurality of surgical procedures with a single device, while optimally reproducing real conditions.
- said other portion 11 is integral with the base 21.
- solidaire reference is made here to the fact that this other portion 11 remains fixed relative to the base 21.
- said integral portion 11 is formed by an extension of the base 21, this extension coming from material with said base 21.
- said other portion 11 is also movable relative to the base 21.
- each opening 4 is placed on a movable portion, the movable portions being distinct between they.
- Such arrangements make it possible to increase the possibilities of changing the gap between two openings 4.
- the device 1 is implanted in a congested environment, whether by assistance personnel stationed in the immediate vicinity of said device. 1 or else by other equipment necessary for the surgical procedure concerned. It is then understood that in this type of environment, the amplitude of the displacements of a movable portion 10 can be limited, so that having two moving portions is very advantageous for compensating for the reduced amplitude of each of said moving portions.
- the movable portion 10 is able to be moved in a translational movement.
- the device comprises a slideway (not shown in the figures) configured in a manner known per se to cooperate with said movable portion 10.
- the use of such a slide ensures a stable translational movement in a plane parallel to that in which the first surface 9 extends.
- the device 1 may comprise two rails arranged facing each other and configured to cooperate with two opposite sides of the movable portion 10.
- the first surface 9 comprises two movable portions
- the invention can not be reduced to a mode of displacement of a particular type for a movable portion 10, such as a translational movement as described above.
- a movable portion 10 in a substantially circular arc movement by means of a lever arm configured for this purpose (for example a lever arm whose one end is movable in rotation and another opposite end is fixedly cooperating with a movable portion), or else to have a movable portion 10 rotated by means of one or more hinges.
- a lever arm configured for this purpose (for example a lever arm whose one end is movable in rotation and another opposite end is fixedly cooperating with a movable portion), or else to have a movable portion 10 rotated by means of one or more hinges.
- the first surface 9 has several moving portions, the respective movements of said movable portions differ from each other.
- the invention has been described so far with at most two movable portions.
- the number of mobile portions can not be limited to two at the most. More particularly, the number of movable portions is at most equal to the number of openings 4 made in the first surface 9.
- the maximum number of openings 4 is adapted according to the range of surgical procedures on which the Medical personnel for the same device 1.
- the number of openings is equal to 5, and the number of movable portions is between 0 and 5, for example equal to 2.
- the invention consists of a guidance system for the training of a surgical act.
- said system comprises a driving device 1, at least a first sheath 7 comprising a longitudinal portion 71 and hollow introduced and maintained in one of the openings 4 of said
- the sleeve 7 is adapted to receive a rod 81 of a surgical tool 8.
- said first sleeve 7 provides a pivot-sliding connection for the movement of said tool.
- the surgical system comprises a second sleeve 7 inserted and held in one of the openings of the drive device 1.
- the guidance system also includes at least one surgical tool 8 as described above.
- the longitudinal portion 71 of the sheath 7 also comprises a layer of elastic material 74.
- This layer of elastic material 74 is configured to be deformed by an object located in the central hollow portion of the longitudinal portion 71 of the sheath 7.
- this layer of elastic material 74 is disposed on the inner surface of the longitudinal portion 71 of the sleeve 7. In one embodiment, this layer 74 is fixed to the inner surface of the sheath 7.
- the attachment can bonding or heat sealing.
- this elastic material layer 74 is configured to be deformed in compression as a rod 81 passes.
- the outer diameter of the rod 81 is greater than the inner diameter of the longitudinal portion 71. 7.
- the layer of elastic material 74 will tend to return to its original shape, thus making zero difference between the inner diameter of the sheath 7 and the outer diameter of the rod 81.
- the inner diameter of the longitudinal portion 71 of the sleeve 7 varies between a first diameter where the layer of elastic material 74 is in its "rest” form and a second diameter where the layer of elastic material 74 is compressed. at the maximum of its elasticity.
- the outer diameter of the rod is between said first diameter and said second diameter. In this way, the clearance between the rod 81 and the walls of the sleeve 7 is advantageously avoided. In addition, this also makes it possible to use surgical tools 8 comprising rods 81 of different diameters on the same sleeve 7. This latter possibility makes it possible to obtain optimized configurations relating to various situations of operating procedures. Thus, the same sleeve 7 can be used for training and simulation of use of different surgical tools and thus for the simulation of different surgical procedures.
- the layer of elastic material 74 comprises a first portion at the first longitudinal end of the longitudinal portion 71 of the sheath 7 and a second portion located at the second longitudinal end of the longitudinal portion 71 of the sheath 7. This mode reduces the amount of material used and lighten the sheath.
- first portion and the second portion have a section whose geometry is non-circular so as to facilitate the deformation of the layer of elastic material 74 to the passage of the rod 82.
- first portion and the second portion each have a star section.
- this layer of elastic material 74 comprises a sufficiently smooth surface to provide a pivot-sliding connection with a rod inserted into the sheath 7.
- the handle 82 of the surgical tool 8 comprises at least one embodiment of the invention.
- least one control interface 83 This control interface may be a switch, a push button, a chisel or any actuating means.
- this control interface allows to actuate a function at the distal end of the surgical tool, for example to operate a clamp.
- this control interface 83 will make it possible to reproduce in the virtual world an activation of the distal end of the surgical tool and also to reproduce the state of the control interface 83.
- the surgical tool 8 comprises at least one sensor for activating the control interface 83.
- said activation sensor of the control interface 83 generates an indicator. control.
- the rod 82 comprises a functional part that can be activated by the control interface 83.
- the surgical tool 8 comprises a sensor for actuating the functional part.
- the functional part is a clamp operable via the control interface 83 and the actuation sensor measures the opening angle of the clamp or the distance between two jaws of said clamp.
- said actuation sensor generates a control indicator.
- the functional portion is located near or on the distal end of the shaft 82.
- the control indicator can thus be generated either from the control interface 83 or by the position or the state of the functional part of the surgical tool 8.
- control interface 83 may be a mobile part configured to be simply moved by the user, for example from a user's finger.
- the activation sensor of the control interface 83 generates an indicator that can be the percentage of displacement or a displacement relative to a reference.
- the user trains on a controller 82 similar to that used during a real surgical operation.
- this sensor can be used during a simulation, to generate an image on which is simulated the activation of the functional part of the rod when the user activates the control interface 83, for example to open or close a clamp in proportion to the value of the generated indicator.
- the surgical tool 8 comprises at least one position sensor. In one embodiment, the surgical tool 8 comprises at least one positioning sensor and / or at least one orientation sensor. In one embodiment, the surgical tool 8 comprises at least one communication interface for transmitting the data collected by the sensors of the surgical tool 8 to a remote computer. In one embodiment, this communication interface may be wireless or wireless. In one embodiment, this communication interface also makes it possible to transmit the data of the at least one sensor of the activation of the control interface 83 or the at least one sensor of the actuation of the functional part of the tool. surgical 8.
- the surgical tool 8 comprises at least one haptic feedback means.
- this haptic feedback means is a vibrator or transducer. This haptic feedback means makes it possible, when a simulation detects a contact between the surgical tool and a simulated object in the virtual world, to make the user feel this contact.
- the guidance system also includes means for simulating a surgical act in a virtual world.
- a display device generates in real time a simulation of a surgical procedure comprising a portion of a body of a patient and the simulation of at least one rod of a surgical tool manipulated by a user. .
- the user sees a simulation of the part of a human body to operate in the virtual world as well as a representation of the displacement of the surgical tools that it handles.
- the computer is configured to simulate an interaction between the at least one surgical tool and the patient's body. In one embodiment the computer is configured to transmit information by means of haptic feedback of the surgical tool 8. In one embodiment, the computer is configured to transmit information or activate the haptic feedback means to make it felt the user an event, for example, when the surgical tool touches the patient's body in the virtual world.
- the guidance system includes a generator of an image of an area of a patient's body on a display.
- the generator comprises a computer for receiving the data transmitted by the sensors of the surgical tool and / or the control interface.
- the generator includes a computer for receiving the data transmitted by the surgical tool and transmitting information to said surgical tool 8.
- the computer is configured to:
- the generator from the data received from said sensors of the surgical tool 8, generates a first image comprising a visual representation of at least one surgical tool.
- the visual representation of the latter tool may, for example, be superimposed on the representation of an area of a body or that of an organ and its environment.
- the position of the surgical tool is calculated in real time.
- the first image generated makes it possible to simulate the position of the distal portion of the surgical tool in the body of a virtual patient.
- the first image generated comprises the functional portion of the surgical tool and its activation state. This first image advantageously simulates an image taken by a camera introduced into the patient's body during the operation and displayed on a screen in the operating room to guide the surgeon's movements.
- the generated image is transmitted to a video display.
- the generator generates a second image. In one embodiment, this second generated image includes the first generated image. In one embodiment, the second generated image is a simulation of the surgeon's view during an operation. In one example, this simulation of the surgeon's view includes a screen including the first generated image. In one embodiment, the second generated image comprises a visual representation of at least one surgical tool manipulated by the user. In one embodiment, the at least one surgical tool 8 is represented identically in the virtual world. In one embodiment, the surgical tool is identically represented in the visual representation of the second generated image. In one embodiment, the position, the orientation of the surgical tool 8 are shown in the second generated image. In one embodiment, the state or arrangement of the control interface 83 is shown in the second generated image.
- the user can advantageously look in the second image generated the position of his tool relative to the body of the patient and if the control interface has been activated or not.
- the second image comprises an abdomen of the patient.
- the generator is connected to the position and orientation tracking system of the enclosure 2.
- the second image is generated from data received by said registration system.
- the position and orientation of the chamber 2 is reproduced in the virtual world to simulate, for example the patient's abdomen.
- the second image generated may include trocars inserted into patient incisions. The represented trocars corresponding to the sleeves 7 of the guidance system.
- the shape of the abdomen of the second image corresponds to the shape of the enclosure 2 or corresponds to the shape of the first surface 9.
- the second generated image comprises the patient.
- the computer is configured to interpret the data from the sensors of the surgical tool lever to determine the position and orientation of said surgical tool in the space and / or activation of its functional part. and / or his controller.
- the guidance system thus comprises a video display displaying a reproduction of a portion of at least one surgical tool and a movement relative to its activation when the control indicator is generated.
- the video display is configured to display the first image generated by the generator or the second image generated by the generator.
- the video display also displays a reproduction of an area of a patient's body. In one embodiment, the video display is a screen.
- the video display is a virtual reality headset.
- the second generated image 100 comprises the representation of the patient's operated area 102, at least one trocar 103 inserted into an incision of the patient, at least one surgical tool 104 inserted into said trocar 103.
- the second generated image also includes the first image generated 101.
- this first image 101 is represented in the second image 100 in a screen.
- This first generated image comprises at least one zone of a body of a patient 105 (here an organ) and its environment.
- the first image generated also comprises at least a portion of the surgical tool (here the distal end of the surgical tool) and / or its functional part (here a clamp) activated by the control interface 83 of the surgical tool 8.
- the invention provides a system for training persons to perform a minimally invasive surgical procedure; comprising:
- a video imaging system for producing a video image simulation of said device tool superimposed on a visual representation of an organ of the patient and his environment
- a processor configured to interpret data from the joystick sensors of said device to determine the position and orientation of the instrument; said processor also controlling the video imaging system for creating a visual simulation for said display means.
- the invention has been described by considering a system for training people, this system being in particular equipped with a video imaging system promoting the visual assistance of the person exercising the manipulations.
- the drive device comprises a first surface made of a transparent material, or even in that the entire enclosure is made in a such transparent material.
- the transparent material also forms a visual assistance aid insofar as the person exercising the manipulations acquires a direct visual perception of his movements.
- the use of such a transparent material is compatible with a video imaging system so as to have optimal visual assistance.
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Abstract
Description
Claims
Applications Claiming Priority (2)
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FR1760601A FR3073657B1 (fr) | 2017-11-10 | 2017-11-10 | Systeme de simulation d'acte chirurgical |
PCT/FR2018/052799 WO2019092382A1 (fr) | 2017-11-10 | 2018-11-09 | Système de simulation d'acte chirurgical |
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EP3707694A1 true EP3707694A1 (fr) | 2020-09-16 |
EP3707694B1 EP3707694B1 (fr) | 2022-01-05 |
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EP (1) | EP3707694B1 (fr) |
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CA (1) | CA3082278A1 (fr) |
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FR3106232B1 (fr) | 2020-01-13 | 2022-08-26 | Virtualisurg | Dispositif d’entrainement |
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FR3131970B1 (fr) * | 2022-01-14 | 2024-02-23 | Univ D’Aix Marseille Amu | Dispositif pour la simulation en chirurgie abdominale |
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-
2017
- 2017-11-10 FR FR1760601A patent/FR3073657B1/fr active Active
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2018
- 2018-11-09 WO PCT/FR2018/052799 patent/WO2019092382A1/fr unknown
- 2018-11-09 EP EP18827156.3A patent/EP3707694B1/fr active Active
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- 2018-11-09 MA MA050576A patent/MA50576A/fr unknown
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- 2018-11-09 DK DK18827156.3T patent/DK3707694T3/da active
- 2018-11-09 CA CA3082278A patent/CA3082278A1/fr active Pending
- 2018-11-09 PT PT188271563T patent/PT3707694T/pt unknown
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JP2021502613A (ja) | 2021-01-28 |
DK3707694T3 (da) | 2022-04-04 |
WO2019092382A1 (fr) | 2019-05-16 |
ES2909745T3 (es) | 2022-05-10 |
MA50576A (fr) | 2020-09-16 |
FR3073657B1 (fr) | 2023-05-05 |
FR3073657A1 (fr) | 2019-05-17 |
EP3707694B1 (fr) | 2022-01-05 |
CA3082278A1 (fr) | 2019-05-16 |
CN111630580A (zh) | 2020-09-04 |
PT3707694T (pt) | 2022-04-04 |
JP7269946B2 (ja) | 2023-05-09 |
US20200279506A1 (en) | 2020-09-03 |
CN111630580B (zh) | 2022-12-30 |
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